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(Pocket-lint) - It might be nicknamed the red planet, but there's a lot more to Mars than just rocks and red dust. NASA's images show plenty of hidden beauty and intrigue.

We've been combing the archive to pick a selection of the best and most interesting images NASA has compiled. 

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A hole on Mars

We're kick-starting this list with one of the simplest and yet most interesting images you're likely to see of another planet. Well, based on the story that surrounds it anyway. 

This hole on the surface of Mars was created by the Curiosity rover. Drilled in 2013, the hole was created as part of the rover's efforts to help NASA analyse the surface of the planet. 

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A massive worm?

This image from 2018 appears to show a large crater on the surface of Mars that looks like the planet is home to a gigantic alien worm. 

It's actually a heavily cratered region of the planet located near the Martian equator. An impressive sight nonetheless. 

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From Mars, With Love

Way back in 1999, the Mars Orbiter Camera captured this love heart-shaped formation on the surface of the red planet. 

The shape is apparently the result of a geological collapse in the area which has resulted in a 1.4mile wide pit. 

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Dust devils

Captured by NASA's High Resolution Imaging Science Experiment (HiRISE) camera on the Mars Obiter, this image from 2012 shows a large dust devil casting a snake-like shape over the surface of the red planet. 

It's thought that the dust devil was about 800 metres tall and 30 metres in diameter. 

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South Pole Spiders

Fear not, these are not giant alien spiders, but instead, are cracks on the surface of Mars. This was captured by the  Mars Reconnaissance Orbiter in 2009 and shows a region of the South Pole of the red planet where cracks have appeared on the surface.

It is thought that these cracks have appeared as carbon dioxide has escaped from melting ice and dissipated into the atmosphere. We're just glad they aren't moving. 

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Curiosity selfie

What collection of images of Mars would be complete without a selfie by a Mars rover? This shot of the Curiosity rover was taken in 2015. This image is actually a collection of images that at the "Mojave" site where the rover was busy drilling and collecting rock samples for analysis. 

Other similar images of Curiosity busying itself with analysis of the landscape were captured at Rocknest, John Klein and Windjana. We love the idea of these rovers roaming the surface of the planet carrying out important tests on behalf of the whole of mankind. 

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Dust and frost on the surface

In the middle of 2018, NASA's Mars Reconnaissance Orbiter captured images of sand dunes in the northern regions of Mars. These appeared to show light coloured coatings of dust blown across other darker sandy regions. 

Close observation shows some patches of dry ice around the very edges of the dunes - patches that would quickly turn into gas during the summer season. 

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Blue dunes

Another image from NASA's Mars Reconnaissance Orbiter shows an area of Mars with classic barchan dunes (crescent-shaped sand dunes). These dunes have collected inside the floor of the Lyot Crater. 

One area of the dunes, when colour enhanced, appears to be a cool turquoise blue showing it to be made of a much finer material than the surrounding area. 

Another image of the same area captured in 2017 shows some similarly weird and wonderful shapes in the crater.  

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Frosty surface

This image from the north pole of Mars shows thick icy layers on the surface of the planet. It's not all just rocks and dust down there.

This image was captured by the Mars Reconnaissance Orbiter which picked up on the seasonal frost accumulating in that area. 

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Mars avalanches

This image of Mars is one of a series from the Northern Polar regions of the planet. This area shows a lot of change over the years and includes not only new ice blocks forming, but also sections of ice cliff collapsing. NASA has a fairly awesome view of that happening too.  

This new image was captured by the Mars Reconnaissance Orbiter which was tasked with re-imaging regions of Mars that had been snapped years before in order to compare the landscape. Just like on Earth, a lot has changed over those years, even since the area was first imaged in 2006.

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Possible Methane sources

In 2018, the Mars Orbiter captured this image of the surfaces in the Chryse Planitia region of the planet close to the equator. The image shows large mounds, said to be hundreds of metres in size.

Scientists are not clear on what has caused these mounds, but think it may either be the result of lava eruptions or hot mud emerging from beneath the surface. If it is the latter, it may well point to signs of methane on Mars - something scientists have been looking for for a while. 

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Dunes near Nili Patera

This image from Nili Patera reveals some interesting insight into the weather of Mars. Dunes captured in the image show that winds on the surface continuously blow from east to west moving sand across the area. 

Gradual sand movement is happening here, with dunes repositioning over time as the wind continues to move the sand around. 

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Layers of history

Many of these images are not only incredible views of the planet, but also offer scientific insight into the history of Mars that can be studied here on Earth:

"The geologic history of a planet is written in its layers. Erosion of the surface reveals several shades of light-toned layers, likely sedimentary deposits, as shown in this image taken by the HiRISE camera on the Mars Reconnaissance Orbiter. The most recent geologic features are the narrow sand dunes snaking across the top of all the rocks.

HiRISE operates in visible wavelengths, the same as human eyes, but with a telescopic lens that produces images at resolutions never before seen in planetary exploration missions. These high-resolution images enable scientists to distinguish 1-meter-size (about 3-foot-size) objects on Mars and to study the morphology (surface structure) in a much more comprehensive manner than ever before."

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Tracks in the dust

Just like Earth, the surface of Mars is regularly subjected dust devils - well-formed and strong whirlwinds of varying size that whip up dirt on the surface. This image shows long dark trails where these whirlwinds have passed and blown the dirt around. The darker lines show the material underneath the usual surface dirt and dust. 

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Brain terrain

A wonderfully weird image of the surface of Mars known casually as the "brain terrain" - this is apparently one of the unsolved mysteries of the planet. This strange looking textured terrain is made up of ridge and troughs found across Mars. 

It is thought that water buried below the surface is causing these weird and wonderful shapes as it sublimates (turns into a gas) and emerges from the land. More data is required to establish this as fact though. 

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Brain terrain again

Another view of the same area shows the strange weaving of the landscape and the similarity to the human brain is uncanny. 

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Eye on the storm

In the middle of 2018, the Hubble Space Telescope captured this image of Mars as it passed into the closest proximity to our home since 2003. 

Visible in the image is a dust storm that has raged throughout the planet and covered the entirety of Mars into one giant dust cloud. Another highlight here is the two poles of the planet that are covered in a bright blanket of clouds. 

The two bright dots that can be seen in the darkness of space surrounding the planet are Phobos and Deimos - the two moons that belong to Mars.  

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Tattooed Mars

This image dates back to 2007 and shows the Russell Crater dune field. This area of Mars is often covered in carbon dioxide frost. When that frost evaporates, the area changes significantly. In the top of the image, patches of the remaining frost can be seen. The black markings are the rust of dust devils trailing across the surrounding landscape. 

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Summertime views

This image shows the southern hemisphere of Mars at the end of the summertime. The peaks of the mountain ranges here appear to be covered in ice and snow, but NASA says this isn't possible during this summer period and it's more likely to be mineral deposits instead. 

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Deuteronilus Mensae

This image from the Mars Reconnaissance Orbiter shows the Deuteronilus Mensae region of Mars. A lobe-shaped formation can be seen on the right side of the image. These formations are thought to be caused by icy regions of the land subliminating and dissipating. 

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Ancient bedrock

This view shows some straight ridges in the ancient bedrock that makes up the surface of Mars near Nirgal Valles - one of the longest valleys on the planet. 

It is thought this bedrock has hardened over time and has been able to withstand billions of years of erosion. An impressive feat for an intriguing view. 

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An amazing Mesa

Another incredible image from the surface of Mars shows a small Mesa that's surrounded by sand dunes. The area is heavily eroded and includes several sedimentary deposits within the Mesa. A beautiful view of the power of nature on Mars and how the planet reacts to the environment around it. 

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Saheki's Secret Layers

This view shows Saheki Crater - a crater that's around 84 kilometres across. This crater is filled with alluvial fans (triangle-shaped deposits) that were likely created when melting snow carried different materials down from the edge of the crater into the centre. 

The result is a beautiful, colourful and intriguing bit of landscape of Mars brilliantly captured by the Mars Reconnaissance Orbiter. 

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Layers and dunes

Most of the surface of Mars is covered in dust, dirt and other materials that cover the bedrock below. This image shows one area of the planet where the bedrock is exposed to the elements. Here, layers of red bedrock can be seen with what looks like age rings.

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The Hargraves Crater

This image from the Mars Reconnaissance Orbiter shows an area of Mars that's been hit by different space debris. A rich and varied bedrock surface in the area means coloruful minerals and materials have been spread across the surroundings. The result is a brilliantly colourful image of Mars unlike many others you're likely to see. 

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Crater impacts

The surface of Mars is often changing thanks to hundreds of new asteroid impacts on the surface on a regular basis. 

Mars has a much thinner atmosphere than Earth, meaning it's less protected than our planet when it comes to such interstellar dangers. 

This image shows a brand new crater which was formed with explosive results as the blast sent debris in all directions. The exposed materials vary wild in colours and show a great variety of materials. 

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Crater Tadpoles

An unusual sight of a crater on the surface of Mars shows a view that looks slightly like a tadpole. The tail of this crater was likely created by water running out of the crater and flowing downhill. 

This sort of image is useful for scientists who are trying to study the history of the area and how water existed and reacted with surroundings.

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The faults

A shot of Meridiani Planum shows some interesting layered deposits and faults that have clean breaks too. Another fantastic view of the surface of Mars thanks to the Mars Reconnaissance Orbiter.

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Another Curious view

This image shows the view from NASA's Curiosity Mars rover. Mount Sharp can be seen within Curiosity's eyeline and the rocky surface of Mars certainly looks formidable. 

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Chemical alteration

Mars might not be much to look at now, but that doesn't mean it isn't full of fascinating sights that tell tales about its history. 

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In ancient times, it's thought that water once ran on Mars, carving channels through the landscape and transporting sediment as it went. This image shows a spectral analysis from orbit which highlights chemical alteration in the surface caused by this water. 

This image from Jezero Crater delta shows a surface that's rich in clay and carbonates. The landforms you can see are thought to date back over 3.6 billion years and are possibly home to ancient organic molecules and other potential signs of microbial life. This is why NASA has chosen this area as the landing site for the next Rover, that's set to land on the planet in 2020. 

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Layering

Just like on Earth, there are areas of sediment on the surface of Mars. These areas often result in this sort of wonderfully exquisite layering and speak to the geological history of the planet. 

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Avalanches

In May 2019, the Mars Reconnaissance Orbiter helped capture this image of an avalanche taking place on a 1,640 foot tall cliff near Mars' north pole. 

At that time of year, temperatures on the surface increase, which causes the ice to vaporise which in turn breaks loose blocks of ice and kicks up dust into the surroundings. From above, the results are fairly spectacular. 

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Sand Ripples

This image from 2009 shows wonderful sand ripples and a large sand dune captured at Proctor Crater. Colour was added to make the image more visible but it's no less impressive without it. 

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Valles Marineris

Sure, the Grand Canyon is impressive, but Mars is winning when it comes to impressive valleys. The Valles Marineris is said to be the largest canyon in the Solar System, stretching 600 kilometres across and eight kilometres deep. 

For comparison's sake, Eath's Grand Canyon is just 1.8 kilometres deep and 30 kilometres across. 

This image of the canyon was created using well over 100 images of Mars captured during the 1970s by the Viking Orbiters. 

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The Obliquity of Mars

This is a HiRISE (High Resolution Imaging Experiment) image of the Tithonium Chasma. What makes it interesting is the geology of the area.

Our planet tilts as it rotates on its axis. Mars also tilts in much the same way, but can sometimes tilt as much as 60 degrees more on its axis than Earth does. This tilt can lead to large shifts in climate and it's the sediment deposits in this area which scientists can study to assess the history of the tilt of Mars and the impact of that on climate change on the planet. 

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Fresh craters near Mangala Valles

This image was captured using HiRISE and shows a region near Mangala Valles where two impact craters can be clearly seen front and centre in the image. 

NASA also says the rest of the image is also interesting due to the dusty surface and the criss-cross patterns formed by wind activity on the surface. 

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Cliffs in Ancient Ice

Despite its dusty exterior, it's believed that under the surface Mars is actually converted in a lot of ice.

Sometimes that ice breaks out of the surface, especially in cliff areas like this one where not only can the faint light-blue-coloured hue of ice be seen showing through the surface but large chunks of ice can also break free and tumble down the cliff face. 

Studying the ice helps scientists learn about the climate of the planet and the possibilities it holds for supplying astronauts in future. 

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CO2 Ice Sublimating

Here the High Resolution Imaging Science Experiment camera captured images of the south pole of Mars where carbon dioxide ice could be seen turning from solid into a gas.

The ice would be lost from one section and reform on nearby areas. A series of images from this area were captured between 2007 and 2013 to create an animation of the changes

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Pit Craters

As well as ice under the surface, Mars also has a lot of lava. Some times that lava bubbles up and moves rocks out of the way. In doing so, this can cause pits and craters to appear like this one picked up by the HiRISE camera.

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Speckled Polar Dunes

This shot shows sand dunes around the North Polar erg of Mars. It was taken during the spring when frost was still covering the ground but as the frost sublimates the escaping gas exposes the dark sand and dust below the ice, resulting in this awesome speckled view. 

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A heat shield being released

This image is not just of Mars, but of a glorious event on Mars where the Perseverance rover made its descent onto the planet. This shot shows the heat shield dropping away from the module as it entered the atmosphere on 18 February 2021. 

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Perseverance landing site

The tiny speck in the middle of this image is the NASA Perseverance rover. The image was taken a few days after the landing by the High-Resolution Science Experiment (HiRISE) camera aboard NASA’s Mars Reconnaissance Orbiter (MRO). Yet it still shows the ring of blast marks that were caused by the thrusters as the rover landed on the planet. This is the view from 180 miles up of the little rover doing its thing. 

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China is on Mars too

You'd be forgiven for thinking that NASA is the only organisation exploring Mars. But this photo from 19 May 2021 shows the view from the Zhurong rover.

A Chinese rover that's exploring the Utopia Planitia region of Mars that's located in the northern hemisphere of the planet.

This is just one photo shown off by the China National Space Administration. There are bound to be more as the rover goes about its three month mission exploring the planet. 

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Ice cap erosion

This image shows the South Polar region of Mars where ice cap erosion has created a so-called "Swiss cheese terrain" where all sorts of these shapes have appeared in this area. 

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Whimsical rock textures

From the large and impressive to the tiny and curious. This list of photos from Mars has it all. 

This image was captured by the Curiosity rover and shows a tiny and curious rock formation that's mere centimetres in size yet has NASA excited. 

This sort of formation occurs near clay-heavy layers and sulfate-laden layers of Mount Sharp (the area being explored) and may indicate the historic movement of water in the area. Thereby these images may hint at water on Mars.  

Writing by Adrian Willings. Originally published on 22 March 2019.